›› 2015, Vol. 28 ›› Issue (3): 129-.

• 论文 • 上一篇    下一篇

圆极化磁偶极子天线设计

黄伟,孙保华,孙凌,孙乔   

  1. (西安电子科技大学 电子工程学院,陕西 西安 710071)
  • 出版日期:2015-03-15 发布日期:2015-03-12
  • 作者简介:黄伟(1989—),男,硕士研究生。研究方向:基站天线及电磁偶极子天线设计。E-mail:whuang@stu.xidian.edu.cn。孙保华(1969—),男,教授,博士生导师。研究方向:天线的宽带小型化技术。孙凌(1988—),女,博士研究生。研究方向:室内吸顶天线,短波天线。孙乔(1989—),男,硕士研究生。研究方向:手机天线的设计。

Design of Circularly Polarized Magnetic Dipole Antenna

HUANG Wei,SUN Baohua,SUN Ling,SUN Qiao   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2015-03-15 Published:2015-03-12

摘要:

提出了一种工作在GPS频段的圆极化磁偶极子天线,该天线由两对相互正交的磁偶极子天线组成,具有低轮廓、可嵌入的优点。由于天线四周短路接地,形成了一个封闭且稳定的盒子,使天线对周围环境不敏感。通过电磁仿真优化,制作了天线样机,测试结果表明,反射系数<-10 dB的带宽为6.5%,轴比<3 dB带宽为2.61%。该天线可作为机载GPS天线使用。

关键词: 磁偶极子天线, 圆极化, 可嵌入, 低轮廓

Abstract:

A new circularly polarized (CP) magnetic dipole antenna is designed for operation at the global positioning system (GPS) L2 band.The antenna has the shallow and embedded structure and consists of two pairs of orthogonal magnetic dipoles.The four sides of the antenna are grounded with sheet metals,leading to the antenna's insensitivity to the surrounding environment,forming a closed and firm box.The designed antenna has been fabricated and measured after electromagnetic simulations.The measured results show that the antenna has an impedance bandwidth of 6.5% for S11<-10 dB and a 3-dB axial-ratio bandwidth of about 2.61%.The antenna is suitable for airborne GPS applications.

Key words: magnetic dipole antenna;circularly polarized;embedded;shallow

中图分类号: 

  • TN822